/rdar-combine-highres

Combine High Resolution Artwork — Bug with JPGs?
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rdar-combine-highres.xcodeproj
rdar-combine-highres
rdar-combine-highresTests
README.md
gruene.pdf
gruene.png
gruene@2x.png
j-gruene.jpg
j-gruene@2x.jpg

README.md

Combine High Resolution Artwork — Bug with JPGs?

Open Radar — rdar://problem/15612746

In this Demo Project there's a PNG and JPEG represenation of the same PDF file (added for reference) which are Combined into a single Tiff thanks to the Combine Artwork Resolution Artwork build setting.

It seems the Lempel-Ziv & Welch encoding isn't doing a great job with JPEGs, as the size of the resulting j-gruene.png file is as big as the size of the PNGs, which, obviously, defies the purpose of using a JPG.